Nozzle for locomotives.



PATENTED JUNE 19,1906.

H. O. OLSON. NOZZLE FOR LOCOMOTIVES. APPLIOATION rum) JUNE 29. 1905.

W/ TNE SSE S UNITED STATES PATENT OFFICE.

HANS OTTO OLSON, OF TWO HARBORS, MINNESOTA.

' NOZZLE FOR LOCOMOTIVES. I

Patented June 19, 1906.

To all whom it mag concern: 1

Be it known that I, HANS OTTO OLSON, a citizen of the United States,residing at Two Harbors, in the county of Lake and State of Minnesota,have invented certain new and useful Improvements in Variable Exhaust-Nozzles for Locomotives, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to improvements in variable exhaust-nozzles forlocomotives; and it consists of the improved features of constructionandcombination hereinafter described and claimed.

In the accompanying drawings, forming part of this speclfication, Figure'1 is a top view of my improved nozzle. Fig. 2 is a cross-section on theline a B, Fig. 1. Fig. 3

is a side elevation of the upper portion of the nozzle, showing themanner in which the adjustable wings are operated; and Fig. 4 is aperspective view ofone of the wings. Fig. 5 is; a perspective view of amodified form of g he exhaust-pipefrom the cylinders of the locomotivemay .be of any suitable construction desired, to which is fitted myimproved nozzle 1, which I prefer to make of a shape substantially asshown. In the upper portion of the two opposite side walls of the nozzle1 are recesses 12, in which are journaled the adjustable wings 2 2,which are'formed integral with the operating-shafts, as shown in Fig. 4.The backs of the wings 2 2 are formed-with a fiat surface when largerthan the diameter of their journals, while their inner faces are of ataperin concave construction to as nearly as possib e coincide with theinner form of the nozzle, their extreme upper and inner edges being anarc of the circle which forms the discharge-opening of the nozzle. Thusit will be seen that when the wings are brought forward to a chokedposition the discharge of the nozzle will be practically a circle,whichis the most desirable form possible for the best results.

The wings 2 are provided with the caps 3, which are securely fastened tothem for the purpose of covering the opening and reventing thecollection of dirt or cinders etween the side wallsof the nozzle and thebacks of the wings when the latter are moved forward.

The outside ends 4 and 5 of the wing-shafts are preferably of a squareform for the rece tion of the crank-arms 6, 7, and 8, and in t edrawings one is shown as of an indefinite length, as it is designed toroject out through the smoke-box of the ocomotive,

and the crank-arm 8 is attached to it outside of the smoke-box, to whicharm in turn may be attached any suitable operating device in common use.The crank-arms 6 and 7 are securely fastened to the shafts 4 and 5 andat theirinner ends are connected by means of the pin 9 in the oneengaging within a slotted hole in the other, so that the motion will beapplied to the two shafts simultaneously, and

.thus the wings made to openin unison.

For the purpose of inserting or removing the wings 2 2 the portions 1010 of one of the sidewalls of the nozzle 1 are made removable and areretained. in position by means of the bolts 11 11.

While I have shown the operating-levers 6 and 7 as being located closeto the nozzle 1, it is'evident that the shaft 5 may be extended equallyas long as the shaft 4 and all of the operating-levers be locatedoutside of the smoke-box, if considered anyadvantage, without departingfrom my invention.

. The particular advantage in this form of construction is, first, thesmall proportion of discharge-opening disturbed for the purpose ofvarying the exhaust, as it isfound in practies that the least thegeneral shape of nozzle is changed the better; secondly, that formingthe wing and shaft in one and hinging the wing from its lower edgeprovides a much .more simple construction than heretofore used and alsoadmits of varying the exhaust by changing the general shape of theinterior,

of the nozzle as little as possible, the wings being quite short inproportion to the length of the nozzle. o

In the modification shown in. Fig. 5 of the drawings instead ofproviding the shaft 12 with the wing 2 I make the same perfectly, roundand provide it with the cut-away por-' tion 13, so positioned in thenozzle that when said cut-away portion is in an inward position thewalls thereof are unobstructed, but

2. A nozzle comprising a casing having recesses in the opposite mnerfaces thereof, wings pivotally mounted within said recesses and havingconcaved inner faces, and caps secured to the upper ends of said wingsand having concaved inner edges to correspond with concaved faces of thewings.

3. A nozzle comprising a casing, having recesses in the opposite innerfaces thereof, wings pivotally mounted within the said recesses andhaving their opposite ends flush with the upper end of the casing, andcaps secured to the upper ends of said wings and eX- tending over theupper end of the casing.

4. A nozzle, comprising a casing having recesses in the opposite innerfaces thereof, wings pivotally mounted within the said recesses andhaving their upper ends flush with the upper end of the casing, and capssecured to the upper ends of said wings and extending over the upper endof the casing, and having concaved inner ed es to correspond with theconcaved faces of the wings.

5. A nozzle, comprising a casing, having a round central bore throughthe same, the outer and inner faces of said bore havingoppositely-arranged recesses, wings pivotally mounted within the lowerend of said recesses, and extending up flush with the upper end of thecasing, caps carried by said wings and closing said recesses, the pivotsof said wings extending through the casing at one side, links rigidlyconnected to said pivots and pivota-lly connected together, a lever foroperating one of said pivots whereby both pivots are operated and bothwings are swung inward or outward, thus increasing or decreasing thesize of the opening of the nozzle.

6. A nozzle, comprising a casing having recesses in the inner facethereof, wings or shafts pivotally mounted within the inner ends of saidrecesses and having concaved in- 1 ner faces, and curved caps removablycarried by the upper free ends of the wings on the outside of the casingand closing the upper end of said recesses.

7. A nozzle, comprising a casing having recesses in the opposite innerfaces thereof, shafts mounted within the inner ends of said recesses andof a diameter greater than the depth of the recesses and having a curvedcut-away portion corresponding to that of the inner face of the casing,and means for oscillating said shafts together.

8. A nozzle, comprising a casing having recesses in the opposite innerfaces thereof, shafts mounted within the inner end of the said recessesand having upwardly-extending wings, caps removably supported by the uper ends of said wings, and removable blocfrs carried by one side of thecasing above the shafts, whereby the shafts and wings may be readilyremoved.

9. A nozzle, comprising a casing, and shafts mounted in said casing andhaving curved cut-away portions corresponding to that of the inner faceof the casing.

10. A nozzle, comprising a casing, and. shafts mounted in the casingextending longitudinally across the casing and having curved cut-awayportions corresponding to that of the inner face of the casing.

11. A nozzle, comprising a casing having semicircular recesses in theopposite inner faces thereof, and shafts mounted within the saidrecesses and having a curved cut-away ortion corresponding to that ofthe inner face of the casing.

In testimony whereof I affix my signature in presence of two witnesses.

HANS OTTO OLSON.

Witnesses:

O. A. YEMBERG, B. F. FOWLER.

